Rubber-eraser protector.



No. 829,327. PATENTED AUG. 2l, 1906.. W. N. CRISP.

RUBBER ERASER PROTECTOR. APPLICATION FILED APR. z3, 1906.

me mums Farms ca.. wAsmNm-ow, n. c.

UNITED srnrnsA PATENT GFFIC.

RUBBER-ERASER PROTECTOR.

Specification of Letters Patent.

Patented Aug. 21, 190e.l

Application filed April 23,'1906. Serial No. 313.333.

To a/ZZ whom it may concern,.-

Be it known that I, WILLIAM N. Cnisr, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Rubber-Eraser Protectors; and I do declare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention is a device for holding and protecting rubber erasers and the like from becoming soiled while being carried in the pocket or lying upon the desk.

The obj ect of the invention is to provide a simple and practical device of this character which will be very convenient in use and well adapted to the purpose intended.

`With the above and other objects in view the invention consists of certain novel features of construction, combination, and arrangement of parts, as will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a side elevation of the protector in its closed position. Fig. 2 is a similar view in its o ened position, showing a rubber eraser t erein. Figs. 3 and 4 are sectional views taken, respectively, on the planes indicated by the lines 3 3 in Fig. l and 4 4 in Fig. 2; and Figs. 5 and 6 are erspective views of the two sections or memliiers of the protector.

The embodiment of the invention shown in the accompanying drawings is adapted for use upon flat circular rubber erasers similar to those now in general use and commonly called type-writing erasers; but within the scope of the invention it may be shaped and adapted for use upon erasers of any shape and form. As shown, it consists of two similar semicircular members or sections I 2, which are pivoted together and have a rubber eraser 3 secured between them. These members or sections are preferably stamped or otherwise formed from thin sheet metal, and the section 2 is larger than the section l, so that the latter may be swung into it, as shown in Fig. 2, to expose the eraser 3. The sections l 2 have their substantially flat sides formed with semicircular projections 4 at the centers of their straight edges, and said sides are formed with. concentral a ertures or openings 5 to receive a pivot 6, w ich is preferably in the form of a tubular or cylindrical rivet, as shown. The pivot 6 not only retains the sections together and the eraser between and within them, but also permits the sections to turn independently of each other and the eraser independently of said sections. In order to permit the inner section l to be swung to its opened or closed position, I preferably provide adjacent to one of the ends of its semicircular edge or periphery a projecting stud or finger-piece 7, and in order to retain the two sections in their closed position (shown in Figs. l and 3) I provide a cat-ch or fastening device, which preferably consists in stamping outwardly upon the outer end of the straight side of the section l a rib or bead 8 and stamping in the inner face of the corresponding portion of the section 2 a similar-shaped groove or seat 9, into which the rib or bead S is adapted to spring when the parts are swung to their closed position. If desired, I may also stamp adjacent in the other half of the straight side or edge of the section 1 a similar groove or seat 10, adapted to receive the inwardly-bent corresponding portion or edge 1 1 of the section 2, as will be readily understood upon reference to Figs. 5 and 6 of the drawings. The hook-shaped projection 7 of the section 1 not only serves as a finger-piece to enable said section to be turned, but also forms a catch to coact with one of the sides of the larger casing-sectionto lock the said section 1 when in an open position.

The construction, use, and advantages of the invention will be readily understood from the foregoing description, taken in connection with the accompanying drawings.

It will be seen that the device when in its closed position will effectively protect the eraser from being soiled when it 1s carried in ones pocket and when it lies about upon the desk or table, and that when it is desired to use the rubber any portion of it may be quickly exposed by swinging the sections to their open position and rotating the eraser in said sections. It is of simple construction and may be manufactured .at a comparatively small cost.

Various changes in the form, proportion,

and the minor details of construction may be resorted to without departing from the principle or sacriiicing any of the advantages of this invention as defined by the appended claim.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

An eraser protecting casing comprising IOO lIO

tWo teleseoping` semicylindrieal sections7 an a catch to eoaet with one of the seats of the eraser between and Within said sections7 and larger easing to lock the smaller section in an a pivot connecting said eraser and sections, open position. the outer easing having seats upon opposite In testimony whereof I have hereunto set 5 sides and the inner easing having a projeemy hand in presence of two subscribing Witx5 tion at one side to/ engage one of said seats nesses.

when said inner easing is closed and provided WILLIAM N. CRISP. on the opposite side with a hook-shaped pro- Witnesses: u jeetion forming a 'lingepieee to enable said A. B. CRISP,

Io smaller section to be turned and also forming F. T. ROBINSON. 

